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Description
Application Scenarios
In a high-speed aluminum cold rolling mill, operators need to monitor strip tension in real-time and make immediate setpoint adjustments to prevent breakage or quality defects. The ABB PXAH401 (3BSE017235R1) is mounted directly on the mill stand, where it withstands coolant mist and vibration. Its IP65-rated front panel seals out contaminants, while the responsive touchscreen displays live tension bars and trend graphs. Operators can swipe to access recipe pages and tap to send new references to the hydraulic controllers via the CEX2-Bus, enabling sub-second adjustments that maintain product quality without requiring a return to the central control pulpit.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | ABB PXAH401 (3BSE017235R1) |
| Manufacturer | ABB (Switzerland/Sweden) |
| Product Category | Industrial HMI Operator Unit (Millmate 400 Series) |
| Display | 7-inch TFT Color LCD, Capacitive Multi-Touch |
| Resolution | 800 x 480 pixels (WVGA) |
| Power Supply | 24 V DC (18 – 30 V DC Range) |
| Power Consumption | < 15 W (Typical) |
| Communication | Ethernet (Modbus-TCP, EtherNet/IP), RS-232, RS-485 |
| Operating Temperature | -20°C to +60°C (Ambient) |
| Front Protection | IP65 (Dust-tight, Protected against water jets) |
| Dimensions (HxWxD) | ~240 x 240 x 100 mm (Panel Cut-out: 220 x 220 mm) |
| Weight | Approx. 1.3 – 1.5 kg |
| Memory | 512 MB RAM, 1 GB Flash (Typical for application storage) |
Technical Principles and Innovative Values
The ABB PXAH401 (3BSE017235R1) is engineered to bridge the gap between centralized control rooms and distributed field operations with several key innovations.
- Innovation Point 1: Distributed Intelligence Architecture: Unlike traditional HMIs that simply display data, the PXAH401 often functions as a node in ABB’s Millmate or Advant OCS network. It can run localized logic for tension control or data logging, reducing the load on the main PLC (e.g., AC 800M) and cutting network latency for critical loop closures.
- Innovation Point 2: Industrial-Hardened Touch Interface: The unit employs a projected capacitive touchscreen designed for use with gloves and wet conditions, a critical feature for metal and paper industries. Combined with an aluminum die-cast housing, it resists the impact and electromagnetic interference common near heavy machinery.
- Innovation Point 3: Multi-Protocol Integration: The PXAH401 natively supports both mainstream IT protocols (Modbus-TCP) and industrial control networks (CEX2-Bus, Profibus via gateway). This allows it to act as a protocol converter at the edge, integrating legacy mill equipment with modern Ethernet-based DCS systems.
